[  212.988500] NOHZ: local_softirq_pending 08
[  284.667633] NOHZ: local_softirq_pending 08
[  294.267036] NOHZ: local_softirq_pending 08
[  294.272530] NOHZ: local_softirq_pending 08
[  316.027236] NOHZ: local_softirq_pending 08
[  316.031576] NOHZ: local_softirq_pending 08
[  366.591236] NOHZ: local_softirq_pending 08
[  396.665751] NOHZ: local_softirq_pending 08
[  417.145993] NOHZ: local_softirq_pending 08
[  417.150449] NOHZ: local_softirq_pending 08
[  479.953182] syz-executor.3 (5913) used greatest stack depth: 24176 bytes left
[  480.745527] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[  480.752232] batman_adv: batadv0: Removing interface: batadv_slave_0
[  480.760359] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[  480.767397] batman_adv: batadv0: Removing interface: batadv_slave_1
[  480.776610] device bridge_slave_1 left promiscuous mode
[  480.782304] bridge0: port 2(bridge_slave_1) entered disabled state
[  480.817485] device bridge_slave_0 left promiscuous mode
[  480.823036] bridge0: port 1(bridge_slave_0) entered disabled state
[  480.908337] device veth1_macvtap left promiscuous mode
[  480.913815] device veth0_macvtap left promiscuous mode
[  480.919862] device veth1_vlan left promiscuous mode
[  480.925425] device veth0_vlan left promiscuous mode
[  481.002409] team0 (unregistering): Port device team_slave_1 removed
[  481.012103] team0 (unregistering): Port device team_slave_0 removed
[  481.022552] bond0 (unregistering): Releasing backup interface bond_slave_1
[  481.049448] bond0 (unregistering): Releasing backup interface bond_slave_0
[  481.123086] bond0 (unregistering): Released all slaves
Warning: Permanently added '10.128.0.135' (ECDSA) to the list of known hosts.
[  485.324823] ------------[ cut here ]------------
[  485.329807] WARNING: CPU: 1 PID: 28 at net/netfilter/core.c:151 nf_unregister_net_hook+0x28a/0x3c0
[  485.339045] nf_unregister_net_hook: hook not found!
[  485.344047] Kernel panic - not syncing: panic_on_warn set ...
[  485.344047] 
[  485.351395] CPU: 1 PID: 28 Comm: kworker/u4:2 Not tainted 4.9.0-rc1-syzkaller #0
[  485.358895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  485.368372] Workqueue: netns cleanup_net
[  485.372550]  ffff88012b30f890 ffffffff82d76a92 ffffffff86085f80 ffff88012b30f968
[  485.380560]  ffffffff868b2400 ffffffff84d73d0a 0000000000000009 ffff88012b30f958
[  485.388556]  ffffffff81641ef2 0000000041b58ab3 ffffffff86d6766f ffffffff81641d3c
[  485.396555] Call Trace:
[  485.399189]  [<ffffffff82d76a92>] dump_stack+0x136/0x1d4
[  485.404633]  [<ffffffff84d73d0a>] ? nf_unregister_net_hook+0x28a/0x3c0
[  485.411330]  [<ffffffff81641ef2>] panic+0x1b6/0x358
[  485.416333]  [<ffffffff81641d3c>] ? devm_memremap+0xec/0xec
[  485.422063]  [<ffffffff81480b30>] ? vprintk_emit+0x3d0/0x7f0
[  485.427837]  [<ffffffff84d73d0a>] ? nf_unregister_net_hook+0x28a/0x3c0
[  485.434521]  [<ffffffff81349a1d>] __warn+0x18d/0x1b0
[  485.439636]  [<ffffffff81453e3e>] ? trace_hardirqs_on_caller+0x49e/0x5c0
[  485.446446]  [<ffffffff81349ad2>] warn_slowpath_fmt+0x92/0xb0
[  485.452312]  [<ffffffff81349a40>] ? __warn+0x1b0/0x1b0
[  485.457565]  [<ffffffff81453e3e>] ? trace_hardirqs_on_caller+0x49e/0x5c0
[  485.464388]  [<ffffffff84d73d0a>] nf_unregister_net_hook+0x28a/0x3c0
[  485.470848]  [<ffffffff84d74106>] netfilter_net_exit+0x36/0xa0
[  485.476799]  [<ffffffff84b6af8e>] ops_exit_list.isra.0+0x8e/0x120
[  485.483002]  [<ffffffff84b6d290>] cleanup_net+0x2d0/0x570
[  485.488522]  [<ffffffff84b6cfc0>] ? net_drop_ns+0x60/0x60
[  485.494075]  [<ffffffff8149d1f7>] ? debug_lockdep_rcu_enabled+0x77/0x90
[  485.500836]  [<ffffffff8139b10d>] process_one_work+0x67d/0x14d0
[  485.506875]  [<ffffffff8139b062>] ? process_one_work+0x5d2/0x14d0
[  485.513110]  [<ffffffff813c8f41>] ? finish_task_switch+0x151/0x630
[  485.519401]  [<ffffffff8139aa90>] ? cancel_delayed_work_sync+0x10/0x10
[  485.526046]  [<ffffffff8139c041>] worker_thread+0xe1/0x1050
[  485.531735]  [<ffffffff8139bf60>] ? process_one_work+0x14d0/0x14d0
[  485.538025]  [<ffffffff813acc4e>] kthread+0x20e/0x2d0
[  485.543194]  [<ffffffff81453f6d>] ? trace_hardirqs_on+0xd/0x10
[  485.549145]  [<ffffffff813aca40>] ? kthread_park+0x80/0x80
[  485.554751]  [<ffffffff813aca40>] ? kthread_park+0x80/0x80
[  485.560343]  [<ffffffff813aca40>] ? kthread_park+0x80/0x80
[  485.566024]  [<ffffffff85eb7fda>] ret_from_fork+0x2a/0x40
[  485.572685] Kernel Offset: disabled